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Edward Jenner (born May 17, 1749, Berkeley, Gloucestershire, England—died January 26, 1823, Berkeley) was an English surgeon and discoverer of a vaccine for smallpox. Jenner was born at a time when the patterns of British medical practice and education were undergoing gradual change. Slowly the division between the Oxford- or Cambridge-trained physicians and the apothecaries or surgeons—who were much less educated and who acquired their medical knowledge through apprenticeship rather than through academic work—was becoming...